EP0222606A3 - Improvements in or relating to infra-red phosphors - Google Patents

Improvements in or relating to infra-red phosphors Download PDF

Info

Publication number
EP0222606A3
EP0222606A3 EP86308705A EP86308705A EP0222606A3 EP 0222606 A3 EP0222606 A3 EP 0222606A3 EP 86308705 A EP86308705 A EP 86308705A EP 86308705 A EP86308705 A EP 86308705A EP 0222606 A3 EP0222606 A3 EP 0222606A3
Authority
EP
European Patent Office
Prior art keywords
infra
relating
red phosphors
phosphors
red
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86308705A
Other versions
EP0222606B1 (en
EP0222606A2 (en
Inventor
Colin Leslie Robert Catherall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thorn EMI PLC
Original Assignee
Thorn EMI PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thorn EMI PLC filed Critical Thorn EMI PLC
Publication of EP0222606A2 publication Critical patent/EP0222606A2/en
Publication of EP0222606A3 publication Critical patent/EP0222606A3/en
Application granted granted Critical
Publication of EP0222606B1 publication Critical patent/EP0222606B1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7715—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing cerium
    • C09K11/7721—Aluminates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
EP86308705A 1985-11-13 1986-11-07 Improvements in or relating to infra-red phosphors Expired EP0222606B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8527992 1985-11-13
GB858527992A GB8527992D0 (en) 1985-11-13 1985-11-13 Infra-red phosphors

Publications (3)

Publication Number Publication Date
EP0222606A2 EP0222606A2 (en) 1987-05-20
EP0222606A3 true EP0222606A3 (en) 1988-02-03
EP0222606B1 EP0222606B1 (en) 1990-07-04

Family

ID=10588167

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86308705A Expired EP0222606B1 (en) 1985-11-13 1986-11-07 Improvements in or relating to infra-red phosphors

Country Status (4)

Country Link
US (1) US4719387A (en)
EP (1) EP0222606B1 (en)
DE (1) DE3672455D1 (en)
GB (1) GB8527992D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8711920D0 (en) * 1987-05-20 1987-06-24 Emi Plc Thorn Infra-red phosphors
US5601751A (en) * 1995-06-08 1997-02-11 Micron Display Technology, Inc. Manufacturing process for high-purity phosphors having utility in field emission displays
PL337596A1 (en) * 1999-12-29 2001-07-02 Zaklady Chemiczne Alwernia Sa Catalyst for selectively oxidising ammonia to nitrous oxide by means of molecular oxygen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442264A1 (en) * 1978-11-21 1980-06-20 Philips Nv LUMINESCENT ALUMINATE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1191014A (en) * 1967-05-10 1970-05-06 Thorn Lighting Ltd Phosphor
US3693006A (en) * 1971-06-22 1972-09-19 Sylvania Electric Prod Lamp employing luminescent manganese-activated strontium barium chloro-aluminate phosphor compositions
JPS5028391B2 (en) * 1972-10-20 1975-09-13
NL177757C (en) * 1975-04-16 1985-11-18 Philips Nv LUMINESCENT SCREEN, LOW-PRESSURE MERCURY DISCHARGE LAMP, AND METHOD FOR PREPARING A LUMINESCENT, CERIUM AND MANGANE ACTIVATED ALUMINATE.
US4071465A (en) * 1977-04-18 1978-01-31 Westinghouse Electric Corporation Deep-red emitting phosphor
JPS57185379A (en) * 1981-05-11 1982-11-15 Nec Corp Fluorescent material
US4524300A (en) * 1983-05-13 1985-06-18 U.S. Philips Corporation Luminescent screen and lamp containing the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442264A1 (en) * 1978-11-21 1980-06-20 Philips Nv LUMINESCENT ALUMINATE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 7, no. 34 (C-150)[1179], 10th February 1983; & JP-A-57 185 379 (NIPPON DENKI K.K.) 15-11-1982 *

Also Published As

Publication number Publication date
DE3672455D1 (en) 1990-08-09
US4719387A (en) 1988-01-12
EP0222606B1 (en) 1990-07-04
EP0222606A2 (en) 1987-05-20
GB8527992D0 (en) 1985-12-18

Similar Documents

Publication Publication Date Title
AU591890B2 (en) Improvements in or relating to 3-Aryluracils
GB2196361B (en) Improvements in or relating to stairtread facings
GB2184423B (en) Improvements in or relating to bags
GB2174576B (en) Improvements in or relating to receivers
GB2181092B (en) Improvements in or relating to worktables
GB2178117B (en) Improvements in or relating to clutches
GB2190720B (en) Improvements in or relating to fasteners
GB2178725B (en) Improvements in or relating to component assemblies
GB2177758B (en) Improvements in or relating to pumps
GB2179138B (en) Improvements in or relating to hobs
GB2184531B (en) Improvements in or relating to rec
GB2183099B (en) Improvements in or relating to aerials
GB2184757B (en) Improvements in or relating to sheet-clad structures
GB2173570B (en) Improvements in or relating to pistons
EP0222606A3 (en) Improvements in or relating to infra-red phosphors
GB2177597B (en) Improvements in or relating to drapery
GB2172196B (en) Improvements relating to hair-brushes
GB2199885B (en) Improvements in or relating to fastening devices
GB2174192B (en) Improvements in or relating to cavity-wall ventilators
GB2196528B (en) Improvements in or relating to cooking
GB2170527B (en) Improvements in or relating to piles
GB2164742B (en) Improvements in or relating to hobs
GB2212877B (en) Improvements in or relating to fasteners
GB2184535B (en) Improvements in or relating to hobs
GB2179774B (en) Improvements in or relating to prescalers

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB NL

17P Request for examination filed

Effective date: 19880523

17Q First examination report despatched

Effective date: 19890803

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB NL

REF Corresponds to:

Ref document number: 3672455

Country of ref document: DE

Date of ref document: 19900809

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19941130

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19960601

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011018

Year of fee payment: 16

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20041103

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20041230

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060601

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20051107